ethers.js (node.js) 呼叫支付的solidity函式

我知道你可以將乙太坊發送到智能合約，儘管當你這樣做時，你sendTransaction似乎並沒有在智能合約上指定一個函式。我不太明白這有什麼用。但是我不知道該怎麼做，就是將乙太坊發送到一個設置為應付的函式。我正在使用ethers.js並且可以創建合約，並呼叫可見（只讀）的函式沒問題，但我無法弄清楚如何將帶有交易的乙太坊發送到特定函式

export const testContract = async (address, abi) => {
 const wei = Utils.parseEther("0.1")
 const url = "http://localhost:8545"
 const provider = new Providers.JsonRpcProvider(url)
   // Load the wallet to deploy the contract with
 const privateKey =
   "0x123"
 const wallet = new Wallet(privateKey, provider)

 var contract = new Contract(address, abi, wallet)

 const price = await contract.retrievePrice()
 console.log("price " + price) //logs the price set in the constructor when the contract was made (WORKS)
 const testAddress = await contract.isUser(
   "0x456"
 )
 console.log("testAddress ", testAddress) //checks if the given address is a user on the contract (WORKS)

 const gasPrice = await provider.getGasPrice()
 console.log("gas price: ", gasPrice.toString()) //returns the price of gas from the network (WORKS)
 try {
   const addToUsers = await contract.requestAccess({ //call function to request access, from the current wallet (REVERTS)
     value: wei
   })
   console.log("result of sending transaction ", addToUsers)
 } catch (error) {
   console.log("error.... ", error) //fires as the contract reverted the payment
 }
}

contract.requestAccess關於為什麼呼叫正在恢復我的任何幫助？我不太清楚如何呼叫特定函式並發送 Ether。謝謝！

對評論的回應

好的，所以solidity合約中的函式如下所示：

 function requestAccess() payable {
   require(msg.value == price, "Incorrect sum sent to contract");
   _addUser(msg.sender);
 }

我註釋掉了要求，嘗試但仍然恢復。_addUser 來自我繼承的契約，看起來像

 function _addUser(address account) internal {
   users.add(account);
   emit UserAdded(account);
 }

users是Roles.Role private users;並且位於父契約中

contract Users {
 using Roles for Roles.Role;

從 openzeppelin “openzeppelin-solidity/contracts/access/Roles.sol” 導入

您可能會在評論中註意到，我無法弄清楚什麼對我不起作用，但不是“它有效，謝謝”答案的粉絲，這對其他人沒有幫助。所以我為任何正在尋找這個的人提供了一個關於要點的工作範例。只需要針對您的情況進行一些更改，但應該相對簡單。 https://gist.github.com/amlwwalker/89bc2c5a2b631527bb7def922b4c8306

引用自https://github.com/ethers-io/ethers.js/issues/563

let overrides = {
   // To convert Ether to Wei:
   value: ethers.utils.parseEther("1.0")     // ether in this case MUST be a string

   // Or you can use Wei directly if you have that:
   // value: someBigNumber
   // value: 1234   // Note that using JavaScript numbers requires they are less than Number.MAX_SAFE_INTEGER
   // value: "1234567890"
   // value: "0x1234"

   // Or, promises are also supported:
   // value: provider.getBalance(addr)
};

// Pass in the overrides as the 3rd parameter to your 2-parameter function:
let tx = await exchangeContract.ethToTokenSwapOutput(tokens_bought, deadline, overrides);

引用自：https://ethereum.stackexchange.com/questions/61389